Slicing machine



.A. A. KOTTMANN SLIGING MACHINE.

Filed Dec. 20, 1940 Sept. 7, 1943.

INVENTOR Arthur A. Kottmann BY 5W4 Y ATTORNEYS I I I l I I I l patt d S pt; 1, 19, 13

H W This invention it-ms; to f bandn aachines; and more particularly-to dless cutter bands;

genera-11y imprbved support for a slicing machine drum-whichqpemrits the drum to be shifted tatera lly, to therebyuniformly vary the tension of llfQf the cutter" bahdstcarried tbyithe' "drumjgin combmation withnreans' for shiftingjbr adjusting eilend-icnly of the drum, sjqthat'the'idrum' can be j'usted into"paral1e1ism with the otherblade porting means or.drum of the machine. g

the cutter bands by lubricant frdmthe drum jpurl-t plgfl syi mprdvemnts inthe drum mounting means which supportsthe drum atoneiend only sothat t eans' of the machineifland imprcvements ,in the means for varyingthe relatjve positionstofthe drum suppbrting arms. f r Anotherobject is .l to.

tha sneak an improved means for mounting a drum for. supporting the 1 hrthur Atfi'KottmannyDavenflorh 106 assignor, bymesne assignments, tot -jlhe Bettendorf Comr nxza ne at f Mayg e f fi 1 r v Appiicetionneeeisbe 2051940, Serial nqe zoess 1 t 1 :I

" (oping-est r t e subjectmatter or m comeryaing hpougafio "Seria1- N6;400,269filed June28, I941.

Mo lintedkon-the supporting structure -'of the machineare spaced blade drums and Egthe 1atterbeing 9 supported in "conventional finanner and provided with apulley drt a sheave :1; over Efwhich iS t'rained a belt 'or chaint drivenbyfa motor 9: Endless cutter bands I "areftr'ained specificarrangement of; the cutter bandsi changed since the present invention is directed Qther objects. relate to improvements in" the structure which avoid the contamination-oi a M m time:sgnemsfm,a proyeddrummcunt.foriabandutynebread slicing machine'which issimple i n ldesign and construe r hon and rel atively inexpensive tmmanufacture;

Qjtherjobjectsuand advantageswillbeccmelapparg "iron; the; jollowing detailed, descriptionrof a uitab le embodiment (offthem invention made: in

te tab e mzofthe drlumsup orty a s eferringrto the: drawing byz'nlimerals cf fefer several views;the:present inventfon is illustrated:

in": connection. withfa' s1icing maohi n having fa ,i gure l is a sidefeietationattview,Q igartlfii s tion and cwithtpartsv broken away; or removed;

suppmting: stmcturerwhi'ch includesside trames 1: lzandfl an inteed conveycr indicated generaIBFat 1" 3, and a discharge conveyofi indieated geheraHyl structural details-of the machine:- that re e not fully set forth or claimed herein fbrm fthe' 55 1 rotatablyis' u ,mental' arm 11. j]

primarily to. the support means for thedrumi,

This support"comprises; a pair of spaced members or annsl-land 12 whichare'monntedon a trans} f yerseisupport member "or shaft [5 journaled or otherwise rotatablyt'mounted .in thegfra melm eme fi s ar 1 his hamm m h I red cntheshaft or support member 'ifi adjacentthe frame zes y means of a key [6;

mounted on' the shaft or support" 15' adjacent the frame, I and between the latter land a supp1e{ Thefl supplemental armor element H is rigidly ornonrotatably secured on the shaft or support 15,,as Joya key 18, and serves toprevent endwise or axial movement of the'arm 2. .S paeedflanges or abutmentcporti cjns l Sandi!) of the-second arrn I Z'prqvide therebetween a space ZJLWhich receives the mm H. Screws 2: are threaded throughfthe:

side portions l aand in opposed relation to one mental armour. element l 'l.

noth'efiand en a e opp tes s 0 t susp ew In this manner the ence (which indicate 1 like: 1 parts :1 throughout the 1 armllt; H g I 1 'w t 'Ihedrmn disformed of aetubular member havinga, cylindrical outer surface for supporting rotativefposition relative to thetshaft or support rotativemovement can beimparted to the second arm, [2

relative to the shaft 15; and the first theband-blades orcutters. Endmembers-23 are formed orproyided intericrally ofithedrum 5 and A are spaced; inwardly toward one another from is ends:24fof1 the tubular drum; Ashaft 25 extends through the drum and has reduced diameter ends whichI-ireceive bearing assemblies} 26 mounted "the endl m entbers 23 ot the drum structure. Got iersifl are secured to the end members'23, as

by; bcip's as, and have portions :9; hgcn te o; axially-through the *o'penfends of: the drum}:

I l 3,3 9 1 r a v 3|. The drum member 5 with the ends 23 and a the covers 21 form annular chambers 32. which open solely through the circumferential slots 01" grooves 3|. By this arrangement lubricant from the bearings'iZli "is "prevented from-reaching the outer surfaceof the drum 5 and contamination of the cutter bands and the bread or other food product being sliced by the machine is avoided.

flange 39 by centrifugal force. Such grease for lubricant normally would not traverse the circum-' I ferential slot or groove 3!.

The free end of the first arm I I is formed with L a journal or bore 33 which receives a stub shaft or spindle .34 supported thereby in approximately parallel relation-to the support member or shaft I5. A set screw 35 or the like threaded through the end of the arm I I engages the-shaft or spindle 34 to secure the latter in place." A; re duced'diameter end 36 on the spindle is received in. an axialfend opening or aperture 31 of the-shaft 25 to support the latter in i cantilever fashion from .the first arm H. a The shaft 25is secured'on the spindle 34 by means of a ball 49 disposed in a radical pocket in the spindle 34 and engageable in amating recess 4| formed in the wall of the axial recess 31. Anelongated rod 42 is slidingly received within an axial bore. extending through the-spindle 34 and is formed with a reduced diameterfportion 43 guided in the end of" the spindle and providinga circumferential shoulder 44 which engages the ball40. to forcethe latter into the'recess 4!, thereby locking the-parts. togeth'er'and drawing end 45 of thereduceddiameter portion of the shaft 25 against the shoulderformed onthe spindle 34 by the reduced diameter end portion of the latter. I'Therod 42 is formed with ai square .end '45-. which projects through the end of the spindle 34 so that the rod can be advanced or retracted byineans of'the Lubricant escaping from one of the bearings 26 moves along the shaft 25 to the exterior of the cover 21 and is thrown radially from the cover a p portions 63 that embrace or engage the support.

1 frame members I and 2 and thereby impart; lim- ,ited rotative movement to the arms H and 12 so as to swing the arms of the drum 5 carried threaded connection portion thereof indicated at.4l W I v p The end ofthe'second arm [2 is formed with a .bore,48 that receives a threaded spindle 49 for longitudinal sliding movement; the spindle being supportedby the arm l2 in parallel relation to the axis of the support shaft .15, Threads 50 On the spindle 49 engages a threaded collar 5| secured to the end of the arm I2bymeans of screws,

52. 'Thus, the, spindle 49 may beladvanced or retracted relative to the end ofthe arm 12,. a

square' end 53. being provided on the endof the spindle to receive a suitable Wrench or crank.

[The spindle-49 has a reduced diameter end.por-

tion54 which extends toward the spindle 34, previously mentioned, and is normally in axial align- I ment with the latter. By 'means'of the threads 5!] the spindle 49 may be advanced so that the reduced diameter end 54 thereof is projected into an axial recess or socket 55 formed in one of the reduced diameter'ends of the shaft 25. During normal operation of the slicing machine the end" 54 of the spindle d9 is disposed within the recess 55 and the'shaft 25 to assist or .cooperaterwith the;spindle34 in supporting the drum; In removing or replacing cutter bands onthe machine the bands are passed over the end of.;.the drum, normallyzsupported by the spindle 49, the latter being sufficiently withdrawn from thesocket; 55;

fashion by the pivoted arm I I.

of the shaft 25 to permit the cutters to pass over armor member 51 located wholly outside of the path of the cutter bands ill and disposed at an angle such as 90 to the normal positions of the arms H and I2. End 58: .of thej. arm 51 bears "against the end of an adjustable "screw 59 thread- 3 ed through a cross member 60 which extends between the side frames I and 2, being bolted to the latter as'indicated at 6|. Preferably, the cross frame member 69 is formed with lateral exten- Y sions 52 which straddle the arm 5'! and have end shaft l5 to prevent deflection of the latter under thelarge forces to which it is subjected.

Byrotating the screw 59, the lever arm 51 may be moved to pivot the support shaft [5 in the thereby through an arcuate path}. JAE shown in Fig.2, the sideframes'may be provided with openings indicatedatflwhich accommodate .the ends of the arms H and 'I2,.so that the rod 4 2 and thespindle 49 can be actuated in all positions of adjustment of the screw59. Movement of the screw 59infonedirection swingsthe drum 5 a'way from the drum 6, thereby tensioning or increasing the tension simultaneously in all :of

the cutter bands l9. Conversely, movement-or adjustment of the screw 59in a reversedirection During normal'operation of the machine axis of the drum 5 should be maintained in paralrl lelisln to the. axis of the drum-.6. Ifthe ends of the'drums adjacentroneflside frame of the mag: chine should become closer together than th ends adjacent the other side frame Iofthema-Q chine,. the endless. cutter bands would. tend to migrate or move toward'the drum endsclose'stto gether, This migration of the blades would tend to occureven though the drum axes are out of. parallel only a few thousandths of an inch. By means of the screws 22 carried by the second arm [2, the left end of thedrum as viewedin Fig. 2 can be shifted toward oraway from the orrg' 'sponcling'end of the drum 6. In this manner'rthe relative positions of' the axes of the blade sup} porting drums can be.adjusted,'thereby equalize L ing or adjusting the tensionin the cutter bands]. The present invention thus provides in com-l bination means including the single lever arm '51 for "simultaneously'and uniformly adjusting the V tion with the blade tension equalizing anda iijusting means above mentioned, means compris ing the retractable spindle 49, permitting blades to be removed or replaced on the adjustable drum I without removing the same'from the machine and while the drum is supported cantilever -The principles of the present invention maybe:

utilized in various ways, numerous IlflOdlfiCfltiDIlSi 'ionithe shaft including an element rigidlyan tached to the support, and a pair of opposed screws carried by the arm and engageable with said element to adjustthe relative rotative posi- 'tion of such arm on the support. :13. 'In a band blade slicing machine having spacedframemembers, a support shaft journaled inthe members, a first in arm rigidly secured on the shaft adjacent one frame membena second arm mounted on the shaft for rotative 'move- KmentadjaCent the other frame'member, a supplemental arm rigidly mounted on the shaft adjacent thesecond arm,.a ustable means conable bytthe-first arm in cantilever fashionfor threading 'band blades onto the drum, a spindle carried by the second arm and engageable with the free end of the shaft to support the same during operation of the machine; andmeans'ffor l rotating the support shaft to swingthe arms in unison and thereby shift the drum laterally;

ARTHUR A. KOTIMANN." 

